663
FNUS74 KMOB 131932
FWSMOB
SPOT FORECAST FOR BURN BLOCK 7201...USDA FOREST SERVICE
NATIONAL WEATHER SERVICE MOBILE AL
232 PM CDT TUE APR 13 2021
FORECAST IS BASED ON IGNITION TIME OF 1500 CDT ON APRIL 13.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
SHOWERS AND THUNDERSTORMS WILL BEGIN TO MOVE INTO
THE BURN AREA OVER THE NEXT COUPLE OF HOURS. RELATIVE HUMIDITY
REMAINS ABOVE CRITICAL THRESHOLDS, WITH TRANSPORT WINDS
MAINTAINING SOUTHERLY AT 15 TO 20MPH. DISPERSIONS REMAIN GENERALLY
GOOD OVER THE BURN AREA. WEDNESDAY FEATURES SIMILAR CONDITIONS,
ALTHOUGH DISPERSIONS WILL BE MARKEDLY LOWER WITH LOW END GENERALLY
GOOD TO NEAR GENERALLY POOR CONDITIONS DURING THE AFTERNOON.
FOG POTENTIAL AND OTHER REMARKS...FOG NOT EXPECTED.
REST OF TODAY
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). CHANCE OF
SHOWERS AND THUNDERSTORMS.
CHANCE OF PCPN......30 PERCENT.
LAL.................NO TSTMS.
MAX TEMPERATURE.....AROUND 82.
MIN HUMIDITY........38 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS AROUND 6 MPH. GUSTY AND ERRATIC
WINDS EXPECTED NEAR THUNDERSTORMS.
MIXING HEIGHT.......3500 FT AGL.
MIXING HEIGHT (M)...975-1067 METERS AGL.
TRANSPORT WINDS.....SOUTH 16 TO 17 MPH.
TRANSPORT WINDS M/S.SOUTH 7 TO 8 METERS/SECOND.
DISPERSION INDEX....53.
LVORI...............1.
STABILITY CLASS.....3.
TIME (CDT) 3 PM 5 PM
SKY (%).........81 87
WEATHER COV.....CHANCE CHANCE
WEATHER TYPE....RNSHWR RNSHWR
TSTM COV........CHANCE CHANCE
CHC OF PCPN (%).30 30
LAL.............1 1
TEMP............82 80
RH..............41 44
20 FT WIND DIR..S S
20 FT WIND SPD..6 7
20 FT WIND GUST.10 10
MIX HGT (FT)....3500 3200
MIX HGT (M).....1070 980
TRANSP WIND DIR.S S
TRANSP WIND SPD.16 17
TRANS WIND DIR..S S
TRANS SPD (M/S).7 8
DISPERSION IDX..56 50
LVORI...........1 1
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT) THEN BECOMING
PARTLY CLOUDY (45-55 PERCENT) THEN BECOMING
MOSTLY CLOUDY (55-65 PERCENT). CHANCE OF
SHOWERS AND THUNDERSTORMS.
CHANCE OF PCPN......30 PERCENT.
LAL.................9-15 STRIKES.
MIN TEMPERATURE.....AROUND 60.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 5 TO 7 MPH EARLY IN THE EVENING
BECOMING LIGHT. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS.
MIXING HEIGHT.......200 FT AGL.
MIXING HEIGHT (M)...61-975 METERS AGL.
TRANSPORT WINDS.....SOUTH AROUND 17 MPH BECOMING SOUTHEAST 5 TO 9
MPH.
TRANSPORT WINDS M/S.SOUTH AROUND 8 METERS/SECOND BECOMING SOUTHEAST
2 TO 4 METERS/SECOND.
DISPERSION INDEX....50 DECREASING TO 4.
LVORI...............5.
STABILITY CLASS.....4.
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........88 87 83 59 50 55
WEATHER COV.....CHANCE CHANCE CHANCE CHANCE CHANCE CHANCE
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
TSTM COV........CHANCE CHANCE CHANCE CHANCE CHANCE CHANCE
CHC OF PCPN (%).30 30 30 30 30 30
LAL.............3 3 3 3 3 3
TEMP............76 69 65 64 61 60
RH..............54 70 84 87 97 100
20 FT WIND DIR..S SSE SE ESE ESE ESE
20 FT WIND SPD..6 5 4 3 3 3
20 FT WIND GUST.10 6 6 4 4 4
MIX HGT (FT)....3200 400 400 300 300 200
MIX HGT (M).....980 120 120 90 90 60
TRANSP WIND DIR.S E E ESE SE SE
TRANSP WIND SPD.17 6 6 8 9 7
TRANS WIND DIR..S E E ESE SE SE
TRANS SPD (M/S).8 3 3 4 4 3
DISPERSION IDX..50 5 4 4 3 3
LVORI...........1 4 5 6 8 9
WEDNESDAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF
SHOWERS AND THUNDERSTORMS EARLY IN THE MORNING,
THEN SHOWERS AND THUNDERSTORMS.
CHANCE OF PCPN......90 PERCENT.
LAL.................9-15 STRIKES UNTIL 0700, THEN >25 STRIKES.
MAX TEMPERATURE.....AROUND 74.
MIN HUMIDITY........71 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 8 MPH IN THE
LATE MORNING AND AFTERNOON. GUSTY AND ERRATIC
WINDS EXPECTED NEAR THUNDERSTORMS.
MIXING HEIGHT.......1600 FT AGL.
MIXING HEIGHT (M)...61-488 METERS AGL.
TRANSPORT WINDS.....EAST 2 TO 7 MPH SHIFTING TO THE SOUTH 10 TO 15
MPH IN THE AFTERNOON.
TRANSPORT WINDS M/S.EAST 1 TO 3 METERS/SECOND SHIFTING TO THE SOUTH
4 TO 7 METERS/SECOND IN THE AFTERNOON.
DISPERSION INDEX....6 INCREASING TO 21 IN THE AFTERNOON.
LVORI...............7.
STABILITY CLASS.....2.
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
SKY (%).........67 78 80 89 93 93
WEATHER COV.....CHANCE DEFNTE DEFNTE DEFNTE DEFNTE DEFNTE
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
TSTM COV........CHANCE DEFNTE DEFNTE DEFNTE DEFNTE DEFNTE
CHC OF PCPN (%).30 80 80 80 90 90
LAL.............3 5 5 5 5 5
TEMP............60 63 71 73 74 73
RH..............100 100 84 76 71 73
20 FT WIND DIR..ESE SE S SW SSW SSE
20 FT WIND SPD..3 4 6 7 7 6
20 FT WIND GUST.4 6 7 10 10 10
MIX HGT (FT)....200 400 800 1300 1400 900
MIX HGT (M).....60 120 240 400 430 270
TRANSP WIND DIR.S SSE E SE SSE S
TRANSP WIND SPD.5 2 3 12 15 10
TRANS WIND DIR..S SSE E SE SSE S
TRANS SPD (M/S).2 1 1 5 7 4
DISPERSION IDX..2 3 6 15 21 14
LVORI...........10 9 4 3 3 4
FORECASTER...25
REQUESTED BY...CLIFF WILLIS
TYPE OF REQUEST...PRESCRIBED
.TAG 2108129.3/MOB
.DELDT 04/13/21
.FORMATTERVERSION 1.0.26
.EMAIL CLIFTON.WILLIS@USDA.GOV
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